On Sun, 3 Jan 2010 22:28:42 -0500, Cortland Richmond wrote:
>FWIW, I've used resonating capacitors to make SM ferrites more effective
>for a spot frequency,
That's a great approach on a circuit board where you're the designer and
the resonance is relatively close to the ferrite alone. The techniques
I've outlined are primarily for "after the fact" and outside the "black
box" applications, where you're NOT the designer, and you're cleaning up
after someone else's mess. :)
The beauty of using multiple turns to move the resonance is that you also
get the "power of N-squared" to greatly increase the resistive choking
impedance.
73,
Jim K9YC
_______________________________________________
RFI mailing list
RFI@contesting.com
http://lists.contesting.com/mailman/listinfo/rfi
|